RFID is known as radio frequency identification. It is a kind of technology that is helpful for tracking several objects or human being or animal. Several industries are following this technology for tracking purpose. There are two types of RFID tags such as active and passive tags. Active tags are expensive compared to passive tags.
Active tags include built-in battery but passive tags do not have battery. Passive tags get charged while the information is exchanged with the tracking system. You may search for the RFID chip timing Sparks Nevada on the Internet to get more information on this regard.